From Bulbapedia, the community-driven Pokémon encyclopedia.
Northern Range (Japanese: きたの さんみゃく Northern Range) is a dungeon in Pokémon Mystery Dungeon that contains 25 floors.
The Northern Range can be accessed once HM Surf has been obtained from Solar Cave and the Southern Island Friend Area has been purchased. The morning after these requirements have been fulfilled, a robbery takes place in Pokémon Square. The culprit is followed to the Northern Range and must be defeated to learn the motivation. Once the dungeon has been completed for the first time, a sequence of events will occur to give access to Pitfall Valley.
Latios will stay in Pokémon Square after being defeated. It will freely offer to join the rescue team on the completion of Pitfall Valley.
Wild Pokémon